AotC was digitally shot in 1,5k… So there is really no need to restore it in 4k.
It was shot in HD and then cropped. Restoring it in 4k from film will keep the full detail from printing the digital image to film. It is also the only way we will be able to compare it frame by frame to finally find all the changes. The in theater camera recording lacks the resolution to really be sure. We’ve found a few, but Rick McCallum indicated there could be more.